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# what number is represented by the byte 00000001?

I am having difficulties understanding the binary system I try to follow along and will continue watching the video a couple more time but as of now have 0 understanding on binary.

PLUS

Jonathan:

Basically, the digit all the way to the right has a value of 1. The next digit to the left has a value of 2. The next has a value of 4. The next has a value of 8.

And they keep doubling in value as you continue to add digits.

In your example, 00000001 means you have: (0 x 128) + (0 x 64) + (0 x 32) + (0 x 16) + (0 x 8) + (0 x 4) + (0 x 2) + (1 x 1) = 1

For another example, if you wanted to represent the number 135 in binary...you would need 128 + 4 + 2 + 1: (1 x 128) + (0 x 64) + (0 x 32) + (0 x 16) + (0 x 8) + (1 x 4) + (1 x 2) + (1 x 1) = 10000111

It helped me ! I couldn't unerstand the video. With your post I've almost got 5/5 on the quiz. Thank you.